Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Shigeo Tomita"'
Autor:
Yoshihiro Hase, Katsuya Satoh, Atsuya Chiba, Yoshimi Hirano, Shigeo Tomita, Yuichi Saito, Kazumasa Narumi
Publikováno v:
Quantum Beam Science, Vol 3, Iss 2, p 8 (2019)
Cluster ion beams have unique features in energy deposition, but their biological effects are yet to be examined. In this study, we employed bacterial spores as a model organism, established an irradiation method, and examined the lethal effect of 2
Externí odkaz:
https://doaj.org/article/8328daafe6904ee6a2266b37ce29a227
Autor:
Manabu Saito, Atsuya Chiba, Ryu Murase, Shigeo Tomita, Kaoru Nakajima, Takuya Majima, Hidetsugu Tsuchida
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 478:284-289
We report first experimental results on the orientation effect of fast diatomic molecular projectiles on secondary ion emission processes for 3.6-MeV C2+ traversing a self-supporting target of phenylalanine (Phe) film evaporated on a carbon foil. Coi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dd90a46276ad0f20501f1edc24c0406
https://doi.org/10.1016/j.nimb.2020.07.010
https://doi.org/10.1016/j.nimb.2020.07.010
Autor:
Ryu Murase, Hidetsugu Tsuchida, Sohei Nakagawa, Shigeo Tomita, Atsuya Chiba, Kaoru Nakajima, Takuya Majima, Manabu Saito
Publikováno v:
Journal of the Physical Society of Japan. 91
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d4deeb077537f81ca17f3972a0111a8
https://doi.org/10.7566/jpsj.91.024302
https://doi.org/10.7566/jpsj.91.024302
Autor:
Hiroshi Kudo, Masanori Kurosawa, Hiroshi Naramoto, Masao Sataka, Satoshi Ishii, Kimikazu Sasa, Shigeo Tomita
Hydrogen concentrations in thin self-supporting samples of polyphenylene sulfide and muscovite have been determined by nuclear-elastic recoil detection analysis of transmission layout. The analysis procedure is based only on the database of stopping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0551e70a2b140b9d2cf0ddde57a5ebdc
Autor:
Shigeo Tomita, R Kinoshita, Kimikazu Sasa, Makoto Imai, M. Sataka, Shuhei Funada, Makoto Matsuda, Y. Shiina, K Kawatsura
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 460:30-33
We measured the yield of Auger electrons emitted through Coster–Kronig transitions from Rydberg states 1 s 2 p ( 3 P ) nl ( n = 7 , 8 ) and 1 s 2 2 p ( 2 P ) nl ( n = 5 , 6 , 7 ) of emergent atomic ions C q + under irradiation of 3.5-MeV/atom C+ an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6d55080e9e74879723cd3137bba4d4a
https://doi.org/10.1016/j.nimb.2018.10.041
https://doi.org/10.1016/j.nimb.2018.10.041
Autor:
Naoto Oishi, Yoshiki Murao, Noriko Nitta, Hidetsugu Tsuchida, Shigeo Tomita, Kimikazu Sasa, Kouichi Hirata, Hiromi Shibata, Yoshimi Hirano, Keisuke Yamada, Atsuya Chiba, Yuichi Saitoh, Kazumasa Narumi, Yasushi Hoshino
Publikováno v:
Journal of Vacuum Science & Technology A. 40:063103
We study morphological changes on the Si surface induced by the C60 ion beam under various irradiation conditions. The fluence and incident energy of the C60 ion beam was 1 × 1016–1 × 1019 ions/m2 and 50 keV–9 MeV, respectively. The beam’s in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a26e8a6e63411b432c497c4c98d4f1e7
https://doi.org/10.1116/6.0002073
https://doi.org/10.1116/6.0002073
Autor:
Takuya Majima, Ryu Murase, Kaoru Nakajima, Atsuya Chiba, Sohei Nakagawa, Manabu Saito, Shigeo Tomita, Hidetsugu Tsuchida
Publikováno v:
Physical Review A. 103
We present experimental results that show the secondary-ion yield depends on the structure and orientation of incident cluster ions. A beam of carbon-cluster ions ${{\mathrm{C}}_{n}}^{+}$ ($n\ensuremath{\le}4$) with an energy of 0.9 MeV per atom, whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bb78bf12ca343efe936f7b0aff92124
https://doi.org/10.1103/physreva.103.062812
https://doi.org/10.1103/physreva.103.062812
Autor:
Noriko, Nitta, Hidetsugu, Tsuchida, Shigeo, Tomita, Sasa, Kimikazu, Koichi, Hirata, Hiromi, Shibata, Yoshimi, Hirano, Keisuke, Yamada, Atsuya, Chiba, Yuichi, Saito, Kazumasa, Narumi
Publikováno v:
連携重点研究2020(令和2)年度成果報告書.
Ion beam irradiation of Si induces the formation of fine structures on the surface by sputtering. In this study, the energy dependence of the formed structures was investigated by electron microscopy using fast C60 cluster ion beams. The size of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::7a1323af9457e92538ac37faef975a89
https://repo.qst.go.jp/records/82952
https://repo.qst.go.jp/records/82952
Autor:
Kimikazu Sasa, Satoshi Ishii, Masataka Ohkubo, Akira Uedono, Hiroshi Kudo, A. Yamazaki, M. Sataka, Shigeo Tomita, Hiroshi Naramoto
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 450:319-322
We report on the preliminary studies for two-dimensional (2D) mapping of hydrogen and other elements in materials with transmission ERDA and PIXE using a microbeam of 8 MeV 4He. The extremely enhanced forward recoil cross section of hydrogen in the n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99d00c98e4c93536eef8ab917edddf6b
https://doi.org/10.1016/j.nimb.2018.10.015
https://doi.org/10.1016/j.nimb.2018.10.015
Publikováno v:
Journal of Physics: Condensed Matter. 33:465901
This manuscript describes our experimental work being carried out to develop the previously published T-ERDA technique to measure H distribution in solids [Yamazaki et al., AIP Adv. 9 (2019) 105111]. From the experiments for the samples with H marker
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c7b8f3717b1306907357c2fde0446af
https://doi.org/10.1088/1361-648x/ac17ac
https://doi.org/10.1088/1361-648x/ac17ac